Book.



Specification of Letters Patent.

oFFIoF..

Application led March 22, 1909, Serial No. 485,008. Renewed December 131916. Serial No. 136` 823.

To all 'whom it may 'concern-:-

Be it VknownV that I, BRADFORD WEBSTER, a citizen of the United States,residin at Louisville county of Jefferson, and tate of Kentuc y, haveinvented a new and useful Book, of which the following is aspecification.

My invention relates to books in which leaves are loosely adjusted andbound on leaf-penetrating members; and the objects ofV my invention areto provide a simpler and more effective structure in the binder; andtoprovide loosely attachable means for internal compression binding. Iattainpthese objects by the mechanism illustrated in the accompanyingdrawing, in which Figurel is an elevation of the binder as seen from theback of the book when laid flat, the right half of the figure showing avertical longitudinal section through the center; Fig. 2, a plan of thelower base on the line 2-2 0f cross-section of the guide-post lock onthe line 3*?) of Fig.V 1; Fig. 4, an end elevation, partly in section,of the binder on the line 4-4 of Fig. 1; Fig. 5, an enlarged sectionalview of the first form of guide-post; Fig. 6, an enlarged section ofVthe vend of a guidepost of the second form; Fig. 7, an enlarged plan inpart section of the locking mechanism,us1ng the guide-post shown in Fig.6; and Fig. 8, a, perspective of a dummy pad. Similar letters refer tosimilar parts throughout the several views. f

The binder consists of tw'o binding parts or bases, in each of which isset one ormore leaf-retaining members and each ofwhich is provided withopenings for admitting freely the leaf-retaining "members of the otherpart'to any extent, so that the bases may be pushed against each other.The leaf-retaining members of one part have means near their free endsand as far along their length as is desired for admitting an engagingelement of the other part: This engaging element of the other part 1scombined W1th` the base and the leaf-retaining members which are settherein.

A represents the base of the binding part which contains the lockingslide C. The slide C is held in this casing by a cap-bar B. In thecap-bar B are set the leaf-retaining members F and F, which penetratethe ln-y side face ofthe casing A and are set tightly therein soas tosupport the cap-bar B andV Fig. 1; Fig. 3a horizontal the casing A intheir relative positions. TheJ locking slide C may be shorter than thecasing A so as not to reach the leaf-retainlug member F. Theleaf-retaining member also penetrates a slot X in the locking slide Cand holds it slidably against removal from the casing` A. i y

The slide C has openings Z, the edges'of which converge to allow thefree passage of the lockable leaf-retaining members-E and E of the otherbinding part when the slide is pulled out; and these same edges areadapted to engage the leaf-retaining members E and E when the slide ispushed in.. The Vcap-bar Band the casing A have holes suitably placed toadmit freely the' leaf-retaining members E and E. In the lfirst form ofmy invention, kthe lockable leaf-retaining members E'and E have annularteeth near their free ends which are beveled downward, and the' en'-V igaging edges of the locking slide C are beveled upward, so thatthelockingslide will not only lock the leaf-retaining members, but theleaf-retaining members will lock theslide not only by friction,but alsoby ('zenterwardv pressure of a beveled surface von'each ,leafretainingmember pressing against a dorre-`v sponding beveled surface in the4locking slide. This tends to hold thelocking slide in position when theleaferetaining mem? bers E and E are pulleddown by'the.eX-' pansivespring of the leaves and binder. This form is illustrated in Fig. 5.A 'il Another form of leaf-retaining member and locking slide is illustratedin Figs. 6 and The inside engaging edges of theflocking slide C are soshaped that'the leaf-retaining members E and E will pass freely'throughthe slide when the slide C is pulled out'.

When the slide C is pushed in, a narrow portion of each opening throughwhich the members E and E have entered, will enter the leaf-retainingmembersv at points of small dia1neter,and the circular end por-V tionsof the slots will engirdlev the leaf-retaining members more than halfway around at points where said leaf-retainingfmembers' are of slightlylarger diameter.v Whenv the locking slide C has been pushed' inY so thatthe engaging edge surrounds the'V post E at one ofits smallest points,the eX-K pansive spring of the leaves, the spring inf,y the binder, orthe elastic dummy fpads, pushes the locking slide C upon the post sothat the engaging edge engages the post at a slightly higher point thanwhere it entered it and at a point where the diameter of the post isslightly larger, so that the engaging edge engages the post at thispoint about three-fourths of the way around it, locking not only thepost but also the locking slide itself until the bookl is compressed andthe locking slide forced back downward to a point on the post where thepost is of smaller diameter.

In the middle of the lower base I is fixed a spring M, 'adjusted topress a flat bar N toward the upper base of the binder, thus holding theleaves under contractive spring pressure. The bar N has tour holes sothat it will move freely up and down the four posts E, F, E', and F, andloe held in alinement by them. Y

'Ihe covers K and K should have their outer surfaces even with the upperand lower surfaces respectively of the bases I and A, so that there willbe no improper projection when the book is placed upon the shelves in alibrary. The back of the book is in two thin stiff sections, crossingeach other slightly when the book is open to its full eX- pandedthickness and capable of sliding by each other.y

To provide loosely attachable, cumulative means for internal compressionbinding and spring binding, I employ the dummy pad I), shown in Fig. 8.This pad has holes to admit the leaf-retaining members et the binder.'To give it an elastic binding edge, its binding edge may consist of astrip ot aerated spongy rubber R, or other springyielding substance. Theexpanded thickness of the strip R may be greater than the thickness ofthe remainder of the pad I), so that when it is compressed the outerpartot' the book will not be thicker than the book at the binding edge.It it is desirable, by reason of the spring M or the thickness of thebases A or I, to iill up some space so as to make the covers even withthe back of the book, the pad P can be made thicker than the elasticstrip R.

I do not limit myself to the exact form in which my invention is hereindisclosed.

I claim:

1. In a tiling device, a lockable leaf-retaining member, looking meanstherefor, a supporting member upon which said locking mea-ns is slidablymounted, and leaf-retaining means for holding said locking meansslidably associated with said support-ing member.

2. In 4afling device, a lockable leaf-retaining member, locking meanstherefor, supportingmembers on opposite sides of the locking means, andleaf retaining means for connecting and positioning said supportingmembers.

3. In a Yloose-leer1 binder or :tiling device,

in combination, a casing, a locking slide therein, and a leaf-retainingmember; said leaf-retaining.member being Set in said casing andpenetrating said slide; said slide having means around said penetratingmember for permitting limited sliding thereof and having means forengaging a lockable leaf-retaining member; and said casing having meansfor admitting such lockable leafretaining member.

4. In a loose-learP binder or filing device, in combination, a casing, acap-bar therefor, a locking slide therein, and a member penetrating saidcasing, cap-bar, and slide, and being secured in and supporting the twoirst--mentioned members, said slide having means around said penetratingmember for permitting limited sliding thereof; and having means foradmitting and engaging a lockable leaf retaining member; and said casinghaving means for admitting such lockable leaf-retaining member.

5. In a loose-leaf binder, a post-lock having a. casing, a cap-bar, Ysaid casing having openings adjusted in its base for the free passage ofguide posts; said cap-bar having openings for the free passage of saidguide posts and being adapted to hold firmly certain other guide posts;said locking slide having openings for the free passage of said latterguide posts when the slide is pushed in or pulled out, and havingcertain inside edges adjusted to the free passage of the first-mentionedguide posts when the slide is in one position and to engage said postsupon straight longitudinal motion of said slide.

6. In combination, a. post of varying diameter near one end, and a slidehavinginside means for admitting said post and, upon motion transversethe post, followed by motion lengthwise the post, for creating anengagement between the post and slide whereby the slide is held by thepost against all transverse motion and the post isheld by the slideagainst longitudinal motion in one direction.

7. In combination, a post adapted near one end for admitting at a poi tof small cross-section and for engaging at a point of largercross-section a. locking element; a locking element havinginside meansfor admitting said post and for creating an engagement between the postand the locking element whereby the locking element is held by the postagainst all transverse motion and the post is held by the lockingvelement against longitudinal motion in one direction. s

S. Inlcombination; a. post adapted nea-r one end for admitting at apoint of smal-l cross-section and for engaging at a point of largercross-section a locking element; a locking element having inside meansfor admitting said post and for creating an enand a locking slide;

gagement between the post and the locking loosely attachable,cumulative, resilient element whereby the locking element is held meansfor internal compression binding, and b y the post against alltransverse motion and means for holding said loosely attachable the postis held by the locking element elements in alinement under pressure.

5 against longitudinal motion in one direc- 12. In a binder, an elasticdummy pad, tion; and means for pushing said locking adjustable on thebinder, having a strip of element toward the engaging portion of saidelastic material in its binding edge. post and there holding it underpressure. 13. In a binder, an elastic dummy pad,

In combination; a post adapted near adjustable on the binder, having astrip of l0 one end for admitting at a point of small elastic materialin its binding edge, and

cross-section and for engaging at a point 0f being composed ofnonelastic material larger cross-section a locking element; a lock- Ythroughout the balance of its structure. ing element having inside meansfor admit- 14. In a binder,A an elastic dummy pad, ting said post andfor creating an engageadjustable on the binder, having an elastic mentbetween the post and the locking elestrip in its binding edge andnon-elastic manient whereby the locking element is held by terialthroughout the balance thereof, said the post against all transverse.motion and elastic strip being of different thickness the post is held`by the locking element from the balance of the pad. againstlongitudinal motion in one direc- 15. In a filing device, incombination, a 90 tion,- and spring-expansive means for pushpair ofbases, each having one or more leafing said locking element toward theengagretaining members and means for admitting ing portion of said postand there holding freely the leaf-retaining means ofthe other it underpressure. base to any extent; and post-engaging means 10. Incombination; a post adapted near for holding said bases at variabledistances 20 one end for admitting at a point of small from one anotheragainst elements filed.

cross-section and for engaging at a point of 16. In a filing device, incombination, a larger cross-section a locking element; a pair of bases,each having one or more leaflocking element having inside means foradretaining members and means for admitting mitting said post and forcreating an enfreely the leaf-retaining means of the other gagementbetween the post and the locking base to any extent; and post-engagingmeans element whereby the locking element is held for holding said basesagainst elements filed by the post against all transverse motion and ata series of different distances from one the. post is held by thelocking element another.

r against longitudinal motion in one direc- Signed at Louisville, in thecounty of D tion; and means for causing the engaging Jefferson and Stateof Kentucky. 4 portion of the post to bear against the en- BRADFORDWEBSTER.V gaging portion of the locking element and Witnesses: thereholding it under pressure, J. S. LUsoHnR,

11. In a. pressure-bound filing device, KATHERINE ARNETT.

Copies ot this patent may be obtained for nve cents each, by addressingthe Commissioner ot Patents, Washington, D. C.

